Quarterly report pursuant to Section 13 or 15(d)

Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets (Details)

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Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets (Details) - USD ($)
$ in Thousands
 9 Months Ended
May. 31, 2015
Aug. 31, 2014
Indefinite And Finite Lived Intangible Assets [Line Items]    
Accumulated Amortization $ 159,772 $ 148,184
Other intangibles, gross 476,681 513,361
Other intangibles, net 316,909 365,177
Tradenames    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Gross Carrying Value $ 112,843 125,905
Customer relationships    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 15 years  
Gross Carrying Value $ 304,265 325,164
Accumulated Amortization 127,241 117,706
Net Book Value $ 177,024 207,458
Patents    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 10 years  
Gross Carrying Value $ 30,879 31,678
Accumulated Amortization 19,229 17,494
Net Book Value $ 11,650 14,184
Trademarks and tradenames    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 18 years  
Gross Carrying Value $ 21,850 23,241
Accumulated Amortization 6,797 6,201
Net Book Value $ 15,053 17,040
Other intangibles    
Indefinite And Finite Lived Intangible Assets [Line Items]    
Weighted Average Amortization Period (Years) 3 years  
Gross Carrying Value $ 6,844 7,373
Accumulated Amortization 6,505 6,783
Net Book Value $ 339 $ 590